T968Y Intelligent Electric Control Valve
Other Products
I. Introduction:
To improve the economy of power plants, steam turbines are equipped with a regenerative system, which is installed with high and low pressure heaters. To ensure that the heaters operate with water level and prevent the steam from the previous stage of the steam turbine from flowing into the next stage when the heater operates without water level, which would reduce the efficiency of the steam turbine and the safety of equipment, a drain control valve is installed in the drain system of the heater. It automatically adjusts the opening of the drain control valve according to the water level signal of the heater, so that the water level of the heater is always maintained within a certain range. The working condition of the drain control valve is very poor, and in many cases it works under two-phase fluid (i.e., steam-water mixture state), and it also operates under throttling condition, resulting in quite severe cavitation. When cavitation reaches a certain level, the drain control valve will no longer function properly. Under such circumstances, the heater cannot be guaranteed to operate with water level, which reduces the operating economy of the steam turbine. Thus, it is particularly important to select a drain control valve with small cavitation, low noise, simple structure and reliable performance.
II. Part Materials:
Valve body, valve cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve core, valve seat: 1Cr18Ni9Ti, Stellite alloy hardfacing
Valve stem, push rod: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13
Packing: Polytetrafluoroethylene (PTFE), flexible graphite, stainless steel bellows
III. Technical Parameters:
|
Nominal Diameter DN (mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
||||
|
(10) |
(12) |
(15) |
(20) |
||||||||||||||
|
Rated Flow Coefficient Kv |
Linear |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
1100 |
1760 |
|
Equal Percentage |
1.6 |
2.5 |
4.0 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
1000 |
1600 |
|
|
Rated Stroke L (mm) |
10 |
16 |
25 |
40 |
60 |
100 |
|||||||||||
|
Intrinsic Flow Characteristic |
Linear, Equal Percentage |
||||||||||||||||
|
Intrinsic Rangeability R |
50:1 |
||||||||||||||||
|
Allowable Leakage |
Hard Seat: Class IV, Soft Seat: Class VI |
||||||||||||||||
|
Nominal Pressure PN (MPa) |
1.6, 4.0, 6.4 |
||||||||||||||||
|
Working Temperature t (℃) |
Normal Temperature Type |
-20～200, -40～250, -60～250 |
|||||||||||||||
|
Heat Dissipation Type |
-40～450, -60～450 |
||||||||||||||||
|
High Temperature Type |
450～560 |
||||||||||||||||
|
Low Temperature Type |
-60～-100, -100～-200, -200～-250 |
||||||||||||||||
| Industry Category | Machinery & Equipment/Valves/Control Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | T968Y智能型电动调节阀 |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
